---

RdbMySQLRow.hh

Go to the documentation of this file.

#ifndef RDBMYSQLROW_HH
#define RDBMYSQLROW_HH

//--------------------------------------------------------------------------
// File and Version Information:
//      $Id: RdbMySQLRow.hh,v 1.3 2005/04/15 17:56:07 salnikov Exp $
//
// Description:
//      Class RdbMySQLRow.
//
// Environment:
//      This software was developed for the BaBar collaboration.  If you
//      use all or part of it, please give an appropriate acknowledgement.
//
// Author List:
//      Andy Salnikov
//
// Copyright Information:
//      Copyright (C) 2005 SLAC
//
//------------------------------------------------------------------------

//-------------
// C Headers --
//-------------
extern "C" {
}

//---------------
// C++ Headers --
//---------------

//----------------------
// Base Class Headers --
//----------------------

//-------------------------------
// Collaborating Class Headers --
//-------------------------------
#include "RdbMySQL/RdbMySQLTypeTraits.hh"

//------------------------------------
// Collaborating Class Declarations --
//------------------------------------

//              ---------------------
//              -- Class Interface --
//              ---------------------


/**
 *  This class represents a single row in the result (relation).
 *
 *  This software was developed for the BaBar collaboration.  If you
 *  use all or part of it, please give an appropriate acknowledgement.
 *
 *  Copyright (C) 2005 SLAC
 *
 *  @see RdbMySQLResult
 *  @see RdbMySQLHeader
 *
 *  @version $Id: RdbMySQLRow.hh,v 1.3 2005/04/15 17:56:07 salnikov Exp $ 
 *
 *  @author Andy Salnikov
 */

class RdbMySQLRow {

public:

  /**
   *  Constructor takes MYSQL_ROW pointer, and the fields list
   */
  RdbMySQLRow ( char** row, unsigned long* lengths ) : _row(row), _lengths(lengths) {}

  // Destructor
  ~RdbMySQLRow () {}

  /// get the specified field as a string
  const char* at( unsigned int i ) const { return _row ? _row[i] : 0 ; }

  /// get the size of the string
  unsigned long size( unsigned int i ) const { return _lengths ? _lengths[i] : 0 ; }

  /// do a type conversion
  template <typename T>
  bool at ( unsigned int i, T& val ) const {
    const char* s = at(i) ;
    if ( ! s ) return false ;
    return RdbMySQLTypeTraits<T>::str2val ( s, size(i), val ) ;
  }


protected:

  // Helper functions

private:

  // Friends

  // Data members
  char** _row ;
  unsigned long* _lengths ;

};

#endif // RDBMYSQLROW_HH

---